[Solved] An offer terminates automatically when the period of time specified in the offer has passed. Cultural Norms: Shared expectations and rules that guide behavior of people within social groups. Exotic Becomes Erotic: A theory proposing that attractions are formed for what is different or unfamiliar, especially in the context of sexual orientation development. Schachter's Theory: A theory suggesting emotions are experienced through a combination of physiological arousal and the labeling of that arousal based on cues from the environment. Homosexuality: A sexual orientation characterized by a romantic or sexual attraction towards individuals of the same sex.